SsoLoginException exception3 = new SsoLoginException(message, runtimeException);
        assertTrue(exception3.getCause() instanceof RuntimeException);
    }

    @Test
    public void test_constructorWithThrowableCause_NullError() {
        // Test with null Error (should work same as null Exception)
        String message = "SSO login error with null cause";
        Error nullError = null;

        assertTrue(exception3.getCause() instanceof RuntimeException);
    }

    @Test
    public void test_constructorWithThrowableCause_NullError() {
        // Test with null Error
        String url = "http://example.com/test";
        String message = "Error with null cause";
        Error nullError = null;

Shinsuke Sugaya <******@****.***> 1773442886 +0900

Shinsuke Sugaya <******@****.***> 1768120985 +0900

Shinsuke Sugaya <******@****.***> 1768120985 +0900

Shinsuke Sugaya <******@****.***> 1772848386 +0900